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Interesting topic as I was thinking alot about body stiffness for my 3800SC Cutlass. 2 thoughts on stiffness 1. I believe the inner rockers, at least on a 1st gen are major structural component in body stiffness, as it was a large area of focus when GM build the convertibles. 2. I had some thoughts this summer to add "frame rail connectors" basically connecting the front "frame" (the portion where the front subframe connects to the body) and run a 2x3 piece of steel to the rear foot panel/front of the fuel tank area and tie into the trailing arm mount areas. I think it would add a TON of structure to the chassis. But I decided for now to forgo the project as it would be a large endeavour to do this. Interesting to know your thoughts as to why and if you had a plan for stiffness?

Probably, I was 7 when @Psych0matt joined

You didn’t mention me but I definitely remember you

So last week I bit the bullet and bought a reman ECM from AutoZone, (They’re partnered with a company called Blue Streak Electronics who remans a lot of OBD1 stuff), and now my Grand Prix runs perfectly now finally. I should have bought it a long time ago but I was afraid that wouldn’t be the problem. Happy to have this car on the road now! Runs and drives almost perfect. Only issue I ran into now is the cruise control cuts out sometimes. One step at a time though. Thank you everyone for the help!

Im just here for the 3800 swaps.

Still in New England? I remember meeting you about 12 years ago, haha.

You the guy that had the black 2dr Regal GS and ended up getting a black Firebird, or am I thinking of someone else?